#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (int)(n); i++)
#define ll long long
#define fi first
#define se second
#define push_back pb
#define show(x) cout << #x << " = " << x << "\n"

using namespace std;

typedef pair<int,int> P;

//f[j](x) = a[j]x + b[j]でaがjの増加に伴い単調減少する場合
template<typename T> class CHT
{
private:
    using ptt = pair<T, T>;
    bool check(ptt l1, ptt l2, ptt l3){
        return (l2.first-l1.first)*(l3.second-l2.second)>=(l2.second-l1.second)*(l3.first-l2.first);
    }
    T f(int i, T x){
        return lines[i].first * x + lines[i].second;
    }
public:
    vector<ptt> lines;
    CHT(){};
    void add(T a, T b){
        ptt line(a, b);
        while((int)lines.size() >= 2 && check(*(lines.end()-2), lines.back(), line)){
            lines.pop_back();
        }
        lines.emplace_back(line);
    }
    T get(T x){
        static int head = 0;
        while((int)lines.size() - head >= 2 && f(head, x) > f(head + 1, x)){
            head++;
        }
        return f(head, x);
        // int low = -1, high = lines.size() - 1;
		// while (high - low > 1) {
		// 	int mid = (high + low) / 2;
        //     if(f(mid, x) >= f(mid+1, x)){
        //         low = mid;
        //     }else{
        //         high = mid;
        //     }
		// }
		// return f(high, x);
    }
};

int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);
    int n;
    cin >> n;
    vector<ll> a(n),x(n),y(n);
    rep(i,n){
        cin >> a[i];
    }
    rep(i,n){
        cin >> x[i];
    }
    rep(i,n){
        cin >> y[i];
    }
    CHT<ll> cht;
    cht.add(-2*x[0],x[0]*x[0]+y[0]*y[0]);
    rep(i,n){
        if(i < n-1){
            cht.add(-2*x[i+1],cht.get(a[i])+x[i+1]*x[i+1]+y[i+1]*y[i+1]+a[i]*a[i]);
        }else{
            cout << cht.get(a[i])+a[i]*a[i] << "\n";
            return 0;
        }
    }
}